| 摘要 |
<p>A projection escape device for fire fighting is mounted in an indoor site, and is especially mounted in a large-size public place (such as a hospital, a supermarket, a hotel, an underground parking lot, or a subway station), and supplies a clearer and more definite excavation and escape direction instruction to a person who is excavated and escapes in fire, an earthquake, a terrorist attack or another emergency, and also provides safety insurance to the person who is excavated and escapes. The projection escape device for fire fighting consists of two parts, namely, a projection apparatus part and a fire-fighting spraying apparatus part. In an emergency, the projection device part projects an image to the ground by using some projection technologies; the image forms a large arrow pattern on the ground; an arrow in a pattern points to a safety exit, a quick passageway, an excavation and rally site or another emergency excavation direction. The fire-fighting spraying apparatus sprays a large amount of water around and to the ground so as to realize functions of extinguishing the fire, absorbing the air heat, reducing the surrounding temperature, adsorbing smoke particles and adsorbing and dissolving toxic and harmful gas, thereby providing safety insurance to a person in escape.</p> |
